Holley Street/Strip Model 4160 750 CFM 4-Barrel Carburetor - Square Bore - Manual Choke - Vacuum Secondary - Dual Inlet - Silver Lead Ballast A take-up or helper spring

A take-up or helper spring keeps the spring firmly in the spring perch preventing the main spring from becoming loose at full drop

1-5/8" diameter tubing

This high quality mechanical to electric hall effect speed sensor from AutoMeter is engineered to adapt to GM and Chrysler transmissions originally designed to accept a 7/8" x 18 thread on style speedometer cable

Automatic Calibrations Feature Optimized Perform Shift Schedule

Holley Street/Strip Model 4160 750 CFM 4-Barrel Carburetor - Square Bore - Manual Choke - Vacuum Secondary - Dual Inlet - Silver Lead Ballast A take-up or helper springHolley Street Strip Carburetor 0 3310S 4 bbl 750 CFM Manual Choke Vacuum Secondary Shiny Finish Shiny Chromate Dip Finish Dual Feed Fuel Inlets Mechanical Secondary Center Hung Float Bowls Manual Choke Power Valve Blowout Protection Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro Stock champion for four decades. Now, Holley EFI products power these